public void MemoryCacheManager_Should_Return_Value_And_Be_Able_To_Change_Existing_Value()
        {
            ICacheManager cacheManager = new MemoryCacheManager();

            cacheManager.Add("Test", "Dit is de waarde...", new CacheItemPolicy());
            cacheManager.AddOrOverwrite("Test", "Dit is de echte waarde...", new CacheItemPolicy());

            string value = cacheManager.Get <string>("Test");

            Assert.AreSame("Dit is de echte waarde...", value);
        }